Pith Number

pith:U2W3MBX3

pith:2012:U2W3MBX3TGL7BCDNY6MOE72ESN

not attested not anchored not stored refs pending

Testing the Copernican Principle with Hubble Parameter

Cong Ma (BNU), Hao Wang (BNU), Tong-Jie Zhang (BNU/UC Berkeley/LBNL), Zhi-Song Zhang (HIT/BNU)

arxiv:1210.1775 v2 · 2012-10-05 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U2W3MBX3TGL7BCDNY6MOE72ESN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Impact of inhomogeneous curvature on growth rate measurements from magnitude fluctuations

Receipt and verification

First computed	2026-05-18T02:25:19.145749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6adb606fb9997f0886dc798e27f44934b938672d5ad9fbfc0d96de65fb782bc

Aliases

arxiv: 1210.1775 · arxiv_version: 1210.1775v2 · doi: 10.48550/arxiv.1210.1775 · pith_short_12: U2W3MBX3TGL7 · pith_short_16: U2W3MBX3TGL7BCDN · pith_short_8: U2W3MBX3

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/U2W3MBX3TGL7BCDNY6MOE72ESN \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a6adb606fb9997f0886dc798e27f44934b938672d5ad9fbfc0d96de65fb782bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2eb7554e39c39a40b1f6f162afd1295acac34eb39ef594bea3fb7a2e5225e1c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-10-05T14:45:07Z",
    "title_canon_sha256": "70bbd0209fc4dc278dadc2c86e22f1ca02831b76b1dcb6b4478f5913198a38bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.1775",
    "kind": "arxiv",
    "version": 2
  }
}